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Spectra Fine Jewelry Step-Cut Sapphire Diamond Engagement Ring 37.13ct

Spectra Fine Jewelry Step-Cut Sapphire Diamond Engagement Ring 37.13ct

Regular price $337,500.00
Regular price Sale price $337,500.00
Sale Please call for price 212-354-3456.
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Spectra Fine Jewelry makes this Art Deco-inspired octagonal sapphire and diamond cocktail ring in the contemporary era, circa 2010s. It features an emerald-cut Basaltic blue sapphire, weighing approximately 37.13 carats. The sapphire is accompanied by Gemmological Report dated 30 December 2019 from Gubelin stating that it is Basaltic with no indication of heating. Basaltic sapphires are found in Australia, Cambodia, Thailand, and Northern Madagascar. The sapphire is set with platinum prongs and accented with an octagonal halo of baguette diamonds that continue whole ways around the band and round diamonds on the mounting, weighing approximately 2.02 carats total. The ring band has an inner spring to provide a comfortable, snug fit.
In the twentieth century, we have witnessed a surge of discoveries of blue sapphire deposits worldwide. Geographic origin determination is a significant consideration in determining value and is incredibly challenging for blue sapphire. Basaltic sapphires are found in volcanic deposits from when the crystal was engulfed by the lava and retained as an inclusion in the resulting igneous rock. They are secondary deposits, as the sapphires have not initially formed in the lava. Reliable origin determination requires careful analysis of a stone’s inclusions, trace element chemistry, and spectroscopic data. Basalt-related blue sapphires have been brought up from some unknown great depths in the earth as xenocrysts (foreign crystals) in volcanic eruptions of alkali basalts. The sapphires are presumed to have been in equilibrium with other magma. Classical sources such as Australia, Thailand, and Cambodia have produced these sapphires for over a hundred years. One can say there was a scorching commodity. Magma hot!
The sleek octagonal diamond halo repeats the octagonal shape of the center sapphire, emphasizing the overall geometric styling of this ring. Jewelry from the Art Deco period often featured repeating and symmetrical geometric designs with contrasting colors—details that are well-observed and realized in this contemporary example. Another point that demonstrates the fine craftsmanship of this piece is how the baguette diamonds within the halos have been set. Owing to advancements in cutting techniques in the Art Deco period, which reflected the vitality of the machine age, gemstones were custom cut in various geometric specialty shapes to fit very closely together. The gemstones could be tightly set against one another to create sleek lines uninterrupted by prongs. The overall visual impact is bold and stark, with a more industrial feel.

SKU :R1326
Category :RINGS
Metal :PLAT
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Spectra Fine Jewelry



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